package chepter04.example31;

public class Example31 {
        public static void main(String[] args) {
            try{
            int result = divide(4, -2);
            System.out.println(result);
        }catch(DivideByMinusException e){
            System.out.println(e.getMessage());
        }
    }
        public static int divide(int x,int y) throws DivideByMinusException{
            if(y<0) {
                throw new DivideByMinusException("除数是负数");
            }
                int result = x/y;
                return result;

            }
        }



